7 Best Keyword Density Checkers for Content Optimisation
Here are some of the best tools you can use to monitor and optimise keyword usage in your content:
1. SEO Review Tools – Keyword Density Checker (Free)
This free online tool is known for its accuracy and simplicity.Just paste your text or URL into the tool, and it will instantly show how often keywords appear and their percentage in your content. It highlights the most used words and phrases, making it ideal for content audits.
Supports URL and text input
Clear data on 1, 2, and 3-word phrases
2. Small SEO Tools – Keyword Density Checker (Free)
A beginner-friendly tool from the well-known Small SEO Tools platform. It gives a detailed breakdown of keyword frequency, total word count, and keyword percentage.
Highlights keyword stuffing
3. Pre Post SEO Keyword Density Tool (Free + Premium)
This tool is perfect for writers and bloggers looking for a quick and accurate analysis. It scans your content and detects keyword overuse while offering recommendations.
Accepts content or web page URLs
Supports multiple keyword tracking
4. WPBeginner – Keyword Density Checker (Free)
It’s a lightweight tool that helps content creators quickly see how often a keyword appears in their content. Just paste your text or URL, and it scans for single keywords, two-word, and three-word phrases. Great for quick checks without login or sign-up.
Easy to use with instant results
Supports keyword phrase analysis (1–3 words)
5. Yoast SEO Plugin (for WordPress Users) (Free + Premium)
Yoast is a widely trusted WordPress plugin that helps improve on-page SEO by guiding you with real-time suggestions. It tracks keyword density in real-time as you write, ensuring you stay within best practice limits.
Real-time keyword analysis
Suggestions for better keyword usage
Visual indicators for SEO and readability
6. Copywritely (Paid with Free Trial)
Copywritely helps improve your content by checking keyword density, spotting SEO issues, and fixing grammar mistakes. It’s a premium tool that offers deep content analysis, making it worth the investment for serious content creators.
Editing and rewriting tools
Plagiarism checker included
7. Ahrefs Site Audit Tool (Paid)
Ahrefs is a full-suite SEO tool that includes a site audit feature with keyword density insights. It’s best for website owners managing large amounts of content.
Enterprise-level analysis
Helps with keyword cannibalisation and optimisation
To know which tool is best for you, read the full explanation here - 7 Best Keyword Density Checkers